Radon Abatement Services

Founded 1998 • With Angi since November 2006

Here at Radon Abatement Services we sustain our business on quality and integrity. We are experts in the residential and commercial radon mitigation trade and are committed to quality from the beginning to the end of your project. We are family owned and operated providing award winning services since 1998.

Awards and Badges

Angi Certified

2022 Super Service Award

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Amenities

Free Estimates
yes
Warranties
ask for details
Senior Discount
no
Eco-Friendly Accreditations
Yes
Licensed
Trade License Number
MHIC 52013; NRPP 101103RMT
Bonded
Insured
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page. Contact pro for more details.

Verified Reviews

5.0

(244) Verified Reviews

Ratings Distribution

5

233

4

2

3

4

2

0

1

5

Rating Details

Price
4.9
Professionalism
4.9
Punctuality
4.9
Quality
5.0
Responsiveness
4.9

Read reviews by category

radon mitigation (243)well & water pump repair (6)real estate agent (4)HVAC Companies (2)mold removal (1)
Showing 1-25 of 244 reviews
Drew L.
5.0
05/07/2022
John and his team have the upmost professionalism, and we are extremely satisfied with the result of our radon mitigation system installed in our lower level. John was patient with me as we communicated on possible installation locations and was able to address all of our concerns. The crew provided excellent customer service. The supervisor discussed all of the possible installation options so I could make an informed decision on where to install the system. Our radon was averaging about 7.5 over 30 days, and would peak to 20-30 during heavy rain. Since our system has been installed and running, we've averaged 0.84 - and that's during heavy rain. Lastly, the total cost was fair and a great value for the price. I've dealt with multiple sub-contractors on various projects, and this was one of the better - if not best - experiences. I highly recommend this company if you're considering a radon mitigation system.
Description of Work
Radon Mitigation Services
Category
radon testing
Hire Again?
Yes
James F L.
5.0
05/05/2022
I monitored the radon in my house for about a month with a Radon Monitor made by AirThings. After a month, the average stayed around 4 pCi/L. I have a friend who recently had a radon reduction system installed in his house, so I asked who did the work for him. He told me that Radon Abatement Services did the work and that he could not have been happier with the work. He gave the owner's (John Swett) direct number. I called John and told him that I would like an estimate to have a radon reduction system installed. John immediately gave me the information that I needed to start the process. Within an hour, an employee (Nikki) called me and patiently, knowledgably, and professionally provided me with step-by-step instructions to get the ball rolling. Nikki is very responsive, and she follows through with everything she says she is going to do. I was provided an estimate, installation date, and within a few days I had a new system installed. The crew arrived on time and impressed me from the minute they got out of the truck. The team leader (Walter) knew me by name and introduced me to his crew. The crew is AMAZING! From start to finish, they respectfully treated my house as if it was theirs. Drop cloths were laid everywhere they were working. Walter and I walked throughout my basement, and he explained in great detail the extent of the work that he and his team would be performing. He explained the tests that he was performing (i.e. material under slab, air suction). Once he gathered the data he needed, he explained to me the entire process, and then he and his crew went to work. Walter is an expert through and through. Not just with his knowledge of radon abatement, but as a professional craftsman. The attention to detail, precise placement of all holes, piping, and electrical are very impressive. The efficient manner in how the job was carried out is second-to-none. The precision and amount of work that they accomplished in just under 4 hours is phenomenal. Since my basement slab did not have gravel underneath, the installation required two suction points. Walter's design, calculations, and fabrication of the two-suction system were brilliant. The work, both inside and outside, looks like a masterpiece. When the job was complete, Walter walked me to each portion of the job (inside and outside) to show and explain all aspects of the system. I'm 59 years old. During my lifetime I have hired many companies to perform a variety of services. Radon Abatement Services ranks in the top 5% of all companies I've ever hired. If you are considering getting a Radon Reduction System, or have Radon Reduction needs of any kind, LOOK NO FURTHER! Radon Abatement Services is the only place to go. The owner, employees, and services are beyond compare.

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Review for Radon Abatement Services - 10503 Hutting, Silver Spring, MD - 39721564Review for Radon Abatement Services - 10503 Hutting, Silver Spring, MD - 39721564
Description of Work
Radon Reduction
Category
radon testing
Hire Again?
Yes
Dennis R.
5.0
01/10/2022
Radon levels were reduced significantly. The work crew was professional and did a great job. I found their pricing fair and the quality of the installation to be first rate.
Description of Work
Radon Abatement and testing
Category
radon testing
Cost
$875
Hire Again?
Yes
Yousef S.
5.0
10/06/2021
5 stars from start to finish. Nikki the scheduler/admin was very kind and patient in getting the details of my basement layout and communicated with owner John to ensure the correct diagnosis and remedy for my situation. I thought that I needed to have my crawl space encapsulated ($$$), but turns out that a remediation system in my utility room was the solution. The team arrived on time for install and took great care to put it in the least intrusive area of the room. Even though it required moving and replacing shelving. They also positioned the exterior vent pipe and fan in a place that wasn’t an eyesore. They also went above and beyond by recognizing and sealing a large gap in the foundation slab. Super clean and quality work. Unbelievable value. Couldn’t be happier.
Description of Work
Radon remediation
Category
radon testing
Cost
$900
Hire Again?
Yes
Todd F.
5.0
08/04/2021
I used Radon Abetment Services LLC to install a radon system in my basement. John and his team were excellent and I highly recommend them to anybody with this need. John was able via video over phone identify where the system should go. His team was extremely professional and courteous. The installation took a day and the improvement in radon levels was remarkable. We would absolutely use them again.
Description of Work
Installation of radon remediation system
Category
radon testing
Cost
$1,300
Hire Again?
Yes
Suzanne R.
3.0
09/01/2020
The work itself was good however I found the owner John to be extremely rude in his correspondence with me which I did not appreciate and which is the reason why I would not rehire them.
Description of Work
Randon abatement
Category
radon testing
Cost
$1,000
James H.
5.0
08/19/2020
We used Radon Abatement Services for our basement. The radon levels were slightly over the EPA recommended limit. We mitigated the radon as part of a larger basement renovation. Radon Abatement Services worked with our General Contractor and did a great job. Radon levels are vastly reduced now as a result of their work.
Description of Work
radon mitigation
Category
radon testing
Cost
$850
Hire Again?
Yes
John D.
5.0
07/06/2019
It was excellent. I like the pricing. They shown up on time, they did everything quickly and smoothly. Answered all my questions.
Description of Work
They installed some stuff to make radon go away and stay away.
Category
radon testing
Hire Again?
Yes
Rick P.
5.0
01/09/2019
HTI performed services in a timely and professional manner.
Description of Work
Basement Radon Test
Category
radon testing
Cost
$125
Hire Again?
Yes
Marc M.
5.0
10/20/2018
I contacted Mr. John Swett by phone, leaving a voicemail. Someone from his company called back to get all the particulars of my situation. After answering those questions, Mr. Swett called me to confirm some things. He was ready to send a crew in just a few days but I needed to wait a week. The crew came as scheduled, did a super job of determining how to best vent the radon gas, added electrical circuitry and put two holes in my basement slab and one through a basement wall, added the external fan and the remaining outdoor piping. I then retested my basement and the score was 1.0, versus the 5.1 it had been before. I found the whole operation to be extremely professional and talented.
Description of Work
I needed the radon concentration in my basement lowered.
Category
radon testing
Cost
$1,325
Hire Again?
Yes

Service Provider Response

Thank you Mr. [Member Name Removed]; It was a pleasure to work with you. Please feel free to call me directly any time if any questions or issues arise with your radon mitigation system. Sincerely, John Swett Owner Radon Abatement Services
Morris H.
5.0
10/12/2018
It went really well! The whole team was professional, knew what they were doing and went straight to work. They were careful so that minor cracks in the basement (and a drain that went nowhere) were properly sealed, as was the seam between the floor and walls. The finished installation is unobtrusive, hardly noticeable. Walked us through the job carefully when done.
Description of Work
Installed Radon Abatement System
Category
radon testing
Hire Again?
Yes
Thomas C.
5.0
06/06/2018
The remediation went very well. They installed the equipment in a few hours and included a test kit. The post-installation test showed a level of .6. Maryland's suggested safe level is 4.
Description of Work
Reduce the level of radon in my basement. It measured 5.7
Category
radon testing
Hire Again?
Yes
Nicole B.
5.0
05/28/2018
We started with a reading of 4.4 pCi/L in our basement. After their installation of the fan, it dropped to 0.6 pCi/L and 0.8 pCi/L. Their crew was amazing. There was a point where they began installing one pipe in an area where I didn't want it. I mentioned that and they quickly filled that area back in and moved the pipe to an area that was much more out of the way. About two weeks after it was installed, I noticed the breaker on our electric panel was tripping. They were out within a few days (I emailed on a Friday). They replaced a faulty part and we were back up and running. John was VERY responsive. He would typically call within about 15 minutes of my emailing him. I am extremely pleased with the service and the work.
Description of Work
Radon Abatement
Category
radon testing
Cost
$1,300
Hire Again?
Yes
Richard A.
5.0
05/28/2018
They came on time and did the work quickly. There were no problems.
Description of Work
New radon removal fan
Category
radon testing
Cost
$400
Hire Again?
Yes
Bryan H.
5.0
05/11/2018
The team was outstanding. They arrived in the morning and identified the best possible options to route the vent pipe. Since the best option was also the most labor-intensive, they made heroic efforts to dig ~6 feet deep from the exterior of the home to access out crawlspace from the corner of the house. This resulted in them taking much longer than expected at our house -- with an outstanding result.
Description of Work
Radon system for house
Category
radon testing
Cost
$1,950
Hire Again?
Yes
John D.
5.0
03/23/2018
They are excellent! My own tests indicated high radon in my full basement. I called them and spoke with John Swett. The work was scheduled quickly. The team showed up on time and smoothly and professionally installed an exhaust system that sucks air with radon from under my slab and exhausts it above the roof. They answered all my questions. Everything was left clean. The fan is VERY quiet. And, best of all, the results of the post-mitigation test they provided have showed radon levels to be well under 2.0!
Description of Work
Radon abatement system
Category
radon testing
Hire Again?
Yes
Claire & Albert B.
5.0
10/27/2017
Bowman's HVAC company technition came to the house within two hours of our call about a failed airconiditioner. It was just one small part . Bowman saved me thousends of dollars. Another company insisted that I replace both furnace and air condioner. We were very pleased with Weston, the techsion's knowledge and attention to detail was outstanding.
Description of Work
Air conditioning and furnace were completley out.
Category
heating & air conditioning/hvac
Cost
$750
Hire Again?
Yes
Napoleon W.
5.0
10/27/2017
Excellent. In the beginning, Mr. Swett was a liitle slow in responding, which he attributed to a very busy schedule. However, our communications picked up, he answered all of my questions. I sent him photos of my basement (finished) and he gave me an estimate and we set an installment date and time. Mr. Leiva (technician) called me about 30 minutes before he arrived at the appointed time. Mr. Leiva, after surveying my basement, explained the best way to install the system. He and his assistant then promptly began working. Their work entailed working outside and inside, so as not to track dirt into the basement, they laid down a drop cloth leading from the basement entrance door to the inside work area. Mr. Leiva and his assistant were courteous and friendly. They did a very professional installation. Their work areas were left clean and the ducting and fan unit did not look out of place. They fit well with the contours of my basement and the siding of my house. I am pleased with my overall experience Mr. Swett, his assistant (Nikki) and technicians.
Description of Work
A radon mitigation system was installed in my basement.
Category
radon testing
Cost
$1,100
Hire Again?
Yes

Service Provider Response

Mr. [Member Name Removed]; I'm so glad we lived up to expectations on your radon issue. Thank you for the positive feedback and thank you for your business! John Swett Radon Abatement Services 202-213-6200
George R.
5.0
10/19/2017
John Swett came and investigated our situation and was most helpful in explaining everything clearly. Price was competitive with other bids. Later the workers did a wonderful job! Arrived on time and worked diligently. They were a pleasure to meet. Things were explained very well and good suggestions were given and carried out. All of them were very professional, courteous, and caring about doing a good job. We highly recommend this company!
Description of Work
We needed a system to vent Radon out of the finished and unfinished sides of our basement.
Category
radon testing
Cost
$1,000
Hire Again?
Yes

Service Provider Response

Hi [Member Name Removed]; I'm very happy that you were pleased with the job, and we very much appreciate your business. Thank you, John Swett Radon Abatement Services 202-213-6200
Ken T.
5.0
09/13/2017
John promptly responded to my emails and was very professional and courteous over the phone. All of our communication went very smoothly. Jim installed our system -- he came on time, was very professional and thorough, and did an outstanding job overall. Would recommend this company to others.
Description of Work
Radon abatement.
Category
radon testing
Cost
$1,000
Hire Again?
Yes
Joseph B.
5.0
08/21/2017
We call the company and they came a few days later and changed the pump. Everything went perfectly, we are very pleased with the service
Description of Work
The 22 year old motor on our radon system failed.
Category
radon testing
Cost
$350
Hire Again?
Yes
Robin S.
5.0
07/12/2017
All went well as expected, would use them again.
Description of Work
Radon Abatement System
Category
radon testing
Hire Again?
Yes
Alexander F.
1.0
06/09/2017
I called to make an appointment, I was told I would hear back from John in the next couple of days. I did not hear back so I called again and they said that he would call me back that afternoon. I did not hear back again, and I called one more time. Never heard back the final time. I understand that they are busy, but just tell me the truth that you can't get to me for several weeks or however long it may be. Extremely frustrating.
Description of Work
Radon mitigation system installed in the basement.
Category
radon testing

Service Provider Response

Mr. [Member Name Removed]; I'm very sorry that I overlooked your inquiries. Nikki emailed me when you called, but the message was buried in dozens of others from the same day and I simply missed it. The demand for our services right now is unprecedented and overwhelming, and I have not been able to keep up with it. This has led to two "F"s on Angie's List in as many weeks, which is very disappointing for me, as we never did any work for either member. We strive to provide the best radon mitigation service to all our clients. Those who use us know well the quality of our work and our responsiveness to any questions or issues. It's frustrating and ironic that the tremendous pressure being put on us by the real estate trade at this time has made it impossible for me to respond to everyone in a timely manner. However, all I can do is keep trying as best I can, to respond to everyone as soon as possible. We have added measures to try to prevent anyone from falling through the cracks in future. Sincerely, John Swett Owner Radon Abatement Services 202-213-6200
Nicholas M.
1.0
06/06/2017
Called to request a quote. Inspection was scheduled and tech came out on time. Verbal quote seemed reasonable, and tech said he would email back a formal quote shortly (and we verbally indicated we were inclined to get the work done). No email was ever sent. Calls to both the tech and the company itself have gone unanswered/messages not returned. It has been over 2 months and they just disappeared.
Description of Work
Quote for radon abatement.
Category
radon testing

Service Provider Response

Mr. [Member Name Removed]; My apologies for somehow missing the email from my asst. Nikki regarding your estimate. We have been swamped with more than 100 new inquiries per week since you contacted us on March 28th. I searched the email chain from Nikki and found only one other email from April 21st, which I never saw. Normally Nikki would call me as soon as a follow-up call from a client comes in asking about their proposal. Unfortunately, the email of April 21st was buried in dozens of others, and I just didn't see it. Nikki is extremely good at returning calls and responding to messages. I've found nothing from her other than the single email of April 21st, so I will find out what happened with the additional calls you made to our office, and take steps to ensure this does not happen in future. Although we strive to provide the best service possible to all, the past 2+ months have been unprecedented and pretty much unmanageable, with tremendous pressure being put on us by the real estate community, averaging more than 25 new inquiries per day, 7 days a week. Every inquiry is "urgent" with quick time frames for mitigation and retest results prior to settlement. I'm very sorry I did not see the email after your call on April 21st, otherwise I would have responded immediately. This was inadvertent and I'm equally sorry we lost the chance to do the mitigation work for you. Sincerely, John Swett Owner Radon Abatement Services 202-213-6200
Bruce B.
5.0
06/05/2017
Highly professional team did a timely and superb job on the installation. At the end of the job they performed a complete cleanup, training on the system, and provided a radon test kit at no additional cost. I highly recommend them for radon abatement services.
Description of Work
Radon mitigation system installed in basement.
Category
radon testing
Cost
$900
Hire Again?
Yes

Other Information

Services offered

Super Service Award Winners from 2007 to present! Commercial & residential radon reduction & vapor extraction systems .

Services not offered

Radon testing.

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FAQ

Radon Abatement Services is currently rated 5 overall out of 5.

Radon Abatement Services accepts the following forms of payment: Check, Visa, MasterCard, American Express, Discover

Yes, Radon Abatement Services offers free project estimates.

Yes, Radon Abatement Services offers eco-friendly accreditations.

No, Radon Abatement Services does not offer a senior discount.

No, Radon Abatement Services does not offer warranties.

Radon Abatement Services offers the following services: Super Service Award Winners from 2007 to present! Commercial & residential radon reduction & vapor extraction systems .